Kluyvera is a relatively newly described genus in the family Enterobacteriaceae that infrequently causes infections in humans. The organism has been isolated from various clinical specimens but its has been regarded alternatively as saprophytic, opportunistic, or pathogenic. In our case Kluyvera... Read More
Enterococcus faecalis grown on blood agar for 48 hrs at 37 degree's C. Small, pin point, circular colonies can be seen with gamma hemolysis (no hemolysis of the blood agar). Colonies were white with a glossy translucent appearance. Read More
Exposed for 3 minutes outdoors in the gymnasium of the Inter American University of Puerto Rico. Medium used for fungi PDA. Culture medium used for bacteria TSA. Incubated at 37 degrees for 48 hours. Read More
Klebsiella pneumoniae grown on Mac for 48 hrs at 37 degree's C. Pink, indicating lactose fermentation, mucoid colonies are seen. Read More
A dimorphic fungi Exophiala dermatitidis was grown on Saburaud Choramphenicol agar for 3 weeks. After this a sterile polilysine coated coverslip was applied on colony to collect fungal elements. Coverslip was fixed in glutaraldehyde, dried and observed using Hitachi Scanning Electron Microscope.... Read More
MacConkey agar plate with invasive lactose fermenting E.coli which was isolated for fatal case of neonatal septicemia.
Photo was taken after 12h incubation under 37C.
Credits: Povilas Kavaliauskas, Vilnius University, Lithuania. Read More
Fungal contaminant on TSA grown at refrigerated temperatures for 1 month. Colonies appeared rhizoid throughout with a fluffy appearance. Read More
Different view of TSA plate with fungal contaminant, presumably from the air, after 1 month at refrigerated temperatures. White center spore formation can be seen with white hypae on the edges. Spore formation can be see forming towards the edges. Read More
Unknown fungal contaminant on TSA after growth at refrigerated temperatures for 1 month. White hypae can be seen at the edges with green spore formation starting in the center. Read More
Klebsiella pneumoniae grown on blood agar for 48 hrs at 37 degree's C. Read More
Serratia marcescens can form brilliant red colonies on LB agar due to the synthesis of the secondary metabolite prodigiosin. In the Microbiology teaching lab, we had students create pigment mutants of S. marcescens and these lovely shades of pink and white were collected for analysis. Read More
These are two harmless lab strains of E. coli. One can ferment the sugar lactose into acidic byproducts and the other cannot. MacConkey media contains an indicator dye that turns from red to yellow when the pH is raised. The four pink streaks were drawn with a culture of the lactose fermenter (t... Read More
Growth Inhibition of Streptococcus pyogenes by Bacitracin. Streptococcus pyogenes is sensitive to bacitracin and will not grow around the antibiotic-containing disc. The other beta hemolytic streptococci are not sensitive to bacitracin. Isolated of Beatrice Rogolino M.Sc - photo Francesco d'Aleo... Read More
Inside the filters of the aquariums harboring hundreds of species of molds and other microorganisms. In this photo we took a some part of the fungi who live into filters. The fungi are important microorganisms for health of aquarium. Read More
An isolate of Staphylococcus aureus (Methicillin sensitive) on blood agar plate. Submitted for approval to be posted as "Picture of the day".
Author: Dr Luqman Satti. Consultant Medical Microbiologist. Combined Military Hospital. Quetta. Pakistan Read More
Some holiday fun from last winter composed of different collected plate contaminants. Based on colony morphology and wet mounts, these bacteria are likely to be: Staphylococcus sp. (white), Serratia marcescens (dark orange), and Micrococcus luteus (creamy yellow). The design was incubated for 5-... Read More
A group of fungi growing on the surface of stagnant black tea left open to the environment. I've found this leads to beautiful morphologies when I try it. Read More